100 million

The number of people cut off from WhatsApp in Brazil last week, after courts blocked the chat app as part of a criminal investigation.

Dating app hack

Details are leaking out again. In December, hackers revealed that they had stolen the personal information of almost 5000 users of Hzone, a dating app for people who have HIV. Accounts included the user’s location, demographic details and messages containing sensitive medical information. Hzone is the latest in a string of dating services – including Tinder and Ashley Madison – that have lost information to hacks because it isn’t held securely enough.